Connected: An Internet Encyclopedia
RFC 1123 - 5.2.12 WKS Use in MX Processing: RFC-974, p. 5

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### 5.2.12 WKS Use in MX Processing: RFC-974, p. 5

RFC-974 [SMTP:3] recommended that the domain system be queried for WKS ("Well-Known Service") records, to verify that each proposed mail target does support SMTP. Later experience has shown that WKS is not widely supported, so the WKS step in MX processing SHOULD NOT be used.

The following are notes on RFC-822, organized by section of that document.

Next: 5.2.13 RFC-822 Message Specification: RFC-822 Section 4

Connected: An Internet Encyclopedia
RFC 1123 - 5.2.12 WKS Use in MX Processing: RFC-974, p. 5